Apple cinema hd display 23 lcd User Manual

 

Apple Cinema HD Display 23 - 
 
1
 
 Symptom Charts
 
Symptom Charts
 
How to Use the Symptom Charts
 
The Symptom Charts included in this chapter will help you diagnose specific symptoms 
related to the product. Because cures are listed on the charts in the order of most likely 
solution, try the cures in the order presented. Verify whether or not the product continues 
to exhibit the symptom. If the symptom persists, try the next cure. 
 
Note:
 
  If you have replaced a module, reinstall the...

 

2 - 
 
Apple Cinema HD Display 23 Symptom Charts
5. To check whether the LCD is working, press the launch button on the display which 
will bring up the Display Preferences window (if the screen is blank you will not see the 
window). Shine a bright light such as sunlight or a high intensity lamp (see Important 
note, below) into the screen and at the same time notice whether you can see a faint 
image of the Display Preferences window or other desktop items on the screen. 
• If desktop items can be...

 

Apple Cinema HD Display 23 - 
 
3
 
 Symptom Charts
 
Partially dim screen
 
This symptom indicates a problem with the inverter or backlight bulbs (on the side of the 
display that is dim), or related cables or connectors. This may be caused by the backlight 
bulbs or the inverter not working properly.
1. Plug the display into a known-good computer with a known-good video card and ADC display port. Boot the computer.
2. Notice whether the power button on the display is  flashing, two short  flashes...

 

4 - 
 
Apple Cinema HD Display 23 Symptom Charts
 
USB device not working
 
1. Check for bent pins in the ADC connector (note, it is normal for two of the pins to be 
slightly longer than the others). If pins are slightly bent, carefully straighten. If pins are 
severely bent, replace cable. Also, inspect or have the customer inspect the display 
port on the computer for broken pin dividers. If the display port is damaged it must be 
repaired before inserting the ADC connector.
2. Plug the display...

 

Apple Cinema HD Display 23 - 
 
5
 
 Symptom Charts
 
When displaying a single color over the screen area, the LCD panel shows one 
or more pixels that are not properly lit
 
Active-matrix LCD technology uses rows and columns of addressable locations (pixels) 
that render text and images on screen. Each pixel location has three separate subpixels 
(red, green, and blue) that allow the image to be rendered in full color. Each subpixel has a 
corresponding transistor responsible for turning the...

 

© 2003 Apple Computer, Inc. All rights reserved.
 

 
 
 
Service SourceViews
 
Apple Cinema HD Display 23 LCD (ADC) 

Apple Cinema HD Display 23 Views - 1
1 ylbmessA tooF 7755-229 1 
1 egniH ,paC 8755-229 2 
 3 922-5576 Cover Assembly, Rear (with blank serial # label) 1
1 raeR ,dleihS 7075-229 4 
 5 922-5580 Shield, EMI, LCD (includes EMI sponges, not assembled) 1
1 ylbmessA egniH 9755-229 6 
1 retrevnI ,draoB 1855-229 7 
1 niaM ,draoB 2855-229 8 
1 BSU ,revoC 3855-229 9 
1 tekcoS BSU ot BLM ,elbaC 4855-229 01 
1 CDA ,niaM ,elbaC 5855-229 11 
1 rewoP lenaP DCL ot BLM ,elbaC 6855-229 21 
1 sissahC 6790-670 31 
1 32 ,DCL...

 

2 - 
 
Apple Cinema HD Display 23 Views Exploded View
 
Exploded View
  
LA291Z
Exploded View
6
5
8
11
14
20
15
1716
13
127
9
10
19
18
1
2
3
4
21 

Apple Cinema HD Display 23 Views - 3 Exploded View
LA291Z
J705
J704
J702J701J703CNC7
CNC6
J11
CN1
CN2
CN3
CN5
CN4
J12
J1
J1
Wiring Diagram
Cable, MLB to Inverter
922-5589
Cable, MLB to USB Socket
922-5584
Cable, MLB to Power Switch
922-5587
Cable, MLB to Launch Switch
922-5588
Main Board
922-5582
Inverter Board
922-5581
Cable, Main, ADC
922-5585Backlight Bulb, Upper
(Not Offered)
Backlight Bulb, Lower
(Not Offered)
Cable, MLB to LCD Panel Power
922-5586 

 

4 - 
 
Apple Cinema HD Display 23 Views Block Diagram
 
Block Diagram
 
TMDSLCD
Panel Power
J701
J703
CN4
CN5
CN3
CN1
CN2
USB Ports Internal - Rear View without Rear Cover
Inverter Board Main Board
J702
J12
J11
J705 J704
Backlight Bulbs, Upper
Backlight Bulbs, Lower
Power Switch Launch Switch
Block Diagram